americans killed in libya about to be brought in. among those killed, chris stevens, sean smith, glen doherty, tyrone woods. you can see the caskets coming off the planes. chris stevens was a diplomat and served two tours in libya. sean smith was an air force veteran. he was an information specialist. glen doherty, a former navy s.e.a.l., he was 42. his sister saying he was the best of the best. he wouldn't have gone down for some protest over a movie. this was a serious, well-planned, well-executed attack. he was good at what he did, her wos. and tyrone woods. three sons, family member saying he loved life, loved adrenaline. you could not find a more skilled s.e.a.l. than him. live pictures. secretary clinton there, president obama. the families have gathered there in the hangar, as well, we're told. earlier in the week, the president reaching out to the family of ambassador stevens. both have spoken in recent days of the work of these four in libya. the secretary of state, hillary clinton, talking about her own faith, saying refraining from violence is not a sign of weakness in one'